Full TGIF Record # 67896
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Web URL(s):http://www.newss.org/proceedings/proceedings_1999_vol53.pdf#page=57
    Last checked: 07/24/2013
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Report
Content Type:Abstract or Summary only
Author(s):Watschke, T. L.; Borger, J. A.
Author Affiliation:Watschke: Professor; and Borger: Research Assistant, Department of Agronomy, Penn State University, University Park, PA
Title:The effect of fall applied preemergence herbicides on spring overseeding
Meeting Info.:Cambridge, MA: January 4-7, 1999
Source:Proceedings of the 53rd Annual Meeting of the Northeastern Weed Science Society. Vol. 53, 1999, p. 57.
Publishing Information:College Park, MD: Northeastern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Autumn; Herbicides; Application timing; Preemergence herbicides; Spring; Overseeding; Festuca arundinacea; Fine fescues; Lolium perenne; Poa pratensis; Seed mixtures; Blends; Germination; Dithiopyr
Cultivar Names:Midnight; Express; Cutter; Edge
Abstract/Contents:"These studies were conducted on a mixed stand of tall fescue (Festuca arundinacea Schreb), fine fescue (Festuca spp), perennial ryegrass (Lolium perenne L.) and Kentucky bluegrass (Poa pratensis L.) at the Landscape Management Research Center, Penn State University, University Park, Pa. The objective of these studies was to assess the ability to over seed an area in the spring that had preemergence herbicides applied in the prior fall. Each study was a randomize complete block design with three replications and a plot size of three feet by five feet. All of the treatments were applied on Oct 17, 1997 using a three foot CO₂ powered boom sprayer calibrated to deliver 80 gpa using two, flat fan, 6504 nozzles at 30 psi. Granular treatments were applied with a shaker jar. Glyphosate was applied at 5 lbs ai/A on Oct 21, 1997 to each test site to simulate winterkill. On April 6, 1998, three test sites were prepared by making three passes using 3/4" hollow core aerification and two passes with a verticutting unit. The first test site was seeded with Midnight Kentucky bluegrass at 2.5 lbs/M. The second test site was seeded with a three way blend of perrenial ryegrass consisting of 32% Express, 32% Cutter and 32% Edge at 5 lbs/M. The Third test site was seeded with 0.5 lb/M DF1 creeping bentgrass (Agrostis palustris Huds.) using a 10 to 1 ratio of greens grade Milorginite to bent grass seed. All seeding was accomplished using a 2.5 foot drop seeder. In addition to the preemergence and seeding, the test sites received 1 lb N/M from a 19-26-5 starter fertilizer at seeding. The seedbeds were maintained until the final rating on June 24, 1998. All treatments tended to delay seedling germination and development in the Midnight Kentucky bluegrass study. A final rating of percent ground cover revealed that prodiamine 65WDG at 0.65, 0.75, 1.0 lb ai/A and oxidation 2G at 3 lb ai/A significantly decreased turf density as compared to the untreated check, but were numerically lower. The untreated check had 85% cover on June 24, 1998. When perennial ryegrass was used, all treatments tended to delay seedling germination and development. The final rating of percent ground cover taken on June 24, 1998, revealed that prodiamine 65WDG at 0.65, 0.75 and 1.0 lb ai/A treated areas significantly decreased the turf stand when compared to the untreated check (95%). Dithiopyr 1EC at 0.5, oxidiazion 2G at 2 and 3 lb ai/A did not significantly differ from the untreated check, but was numerically lower. The third turfgrass established, DF1 creeping bentgrass, produced results similar to that of the Midnight Kentucky bluegrass in germination and seedling development. All treatments were significantly lower than the untreated check (91.7%) when rated on June 24, 1998. The results for perennial ryegrass and the creeping bentgrass were consistent with previous findings from research conducted at Penn State University.
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Watschke, T. L., and J. A. Borger. 1999. The effect of fall applied preemergence herbicides on spring overseeding. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 53:p. 57.
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Web URL(s):
http://www.newss.org/proceedings/proceedings_1999_vol53.pdf#page=57
    Last checked: 07/24/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: SB 610 .N62 v. 53
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